37 	reg Sfio_t*	f;  in _sfall()  local
53 				f = p->sf[n];  in _sfall()
55 				if(f->flags&SF_STRING )  in _sfall()
57 				if(SFFROZEN(f))  in _sfall()
59 				if((f->mode&SF_READ) && (f->mode&SF_SYNCED) )  in _sfall()
61 				if((f->mode&SF_READ) && !(f->bits&SF_MMAP) &&  in _sfall()
62 				   f->next == f->endb)  in _sfall()
64 				if((f->mode&SF_WRITE) && !(f->bits&SF_HOLE) &&  in _sfall()
65 				   f->next == f->data)  in _sfall()
68 				if(sfsync(f) < 0)  in _sfall()
83 int sfsync(reg Sfio_t* f)  in sfsync()  argument
85 int sfsync(f)  in sfsync()
86 reg Sfio_t*	f;	/* stream to be synchronized */  in sfsync()
91 	SFMTXDECL(f);
93 	if(!(origf = f) )
114 	for(; f; f = f->push)
116 		if((f->flags&SF_IOCHECK) && f->disc && f->disc->exceptf)
117 			(void)(*f->disc->exceptf)(f,SF_SYNC,(Void_t*)((int)1),f->disc);
119 		SFLOCK(f,local);
122 		mode = f->mode&SF_PUSH;
123 		f->mode &= ~SF_PUSH;
126 		if((f->flags&SF_STRING) || (f->mode&SF_SYNCED))
129 		if((f->mode&SF_WRITE) && (f->next > f->data || (f->bits&SF_HOLE)) )
131 			reg int pool = f->mode&SF_POOL;
132 			f->mode &= ~SF_POOL;
133 			if(f->next > f->data && (SFWRALL(f), SFFLSBUF(f,-1)) < 0)
135 			if(!SFISNULL(f) && (f->bits&SF_HOLE) )
137 				if(SFSK(f,(Sfoff_t)(-1),SEEK_CUR,f->disc) >= 0)
138 					(void)SFWR(f,"",1,f->disc);
139 				f->bits &= ~SF_HOLE;
141 			f->mode |= pool;
144 		if((f->mode&SF_READ) && f->extent >= 0 &&
145 		   ((f->bits&SF_MMAP) || f->next < f->endb) )
147 			f->here -= (f->endb-f->next);
148 			f->endr = f->endw = f->data;
149 			f->mode = SF_READ|SF_SYNCED|lock;
150 			(void)SFSK(f,f->here,SEEK_SET,f->disc);
152 			if((f->flags&SF_SHARE) && !(f->flags&SF_PUBLIC) &&
153 			   !(f->bits&SF_MMAP) )
154 			{	f->endb = f->next = f->data;
155 				f->mode &= ~SF_SYNCED;
160 		f->mode |= mode;
161 		SFOPEN(f,local);
163 		if((f->flags&SF_IOCHECK) && f->disc && f->disc->exceptf)
164 			(void)(*f->disc->exceptf)(f,SF_SYNC,(Void_t*)((int)0),f->disc);
168 	if(!local && f && (f->mode&SF_POOL) && f->pool && f != f->pool->sf[0])
169 		SFSYNC(f->pool->sf[0]);